[tbb-bugs] #18186 [Applications/Tor Browser]: tor browser updater handles full disk poorly

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Jun 20 13:16:41 UTC 2017

#18186: tor browser updater handles full disk poorly
 Reporter:  cypherpunks               |          Owner:  tbb-team
     Type:  defect                    |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:

Comment (by mcs):

 Replying to [comment:8 torusers]:
 > Hello,
 > I can confirm this. Just yesterday, the updated process crashed my
 > The Linux UI was almost completely unresponsive, I managed to kill -9
 the Tor process and related processes after several minutes.
 > Only today, when the whole ordeal started again just seconds after
 starting the TBB, I checked iotop and noticed that the Tor updater was the
 > *Please* disable this "staging" stuff, it definitely does more harm than
 good. Instead of relying on a well-running PC for a few seconds for the
 update process, the PC has to run many minutes or even hours for the

 I am sorry for your pain. I wish we had more data about how many people
 are affected by this, because I would prefer to leaving staging enabled by
 default like Mozilla does (but I could be convinced that we should do the
 opposite if we had more data).

 > Please remember that there are still many people with non-SSD HDDs,
 where reading and writing at the same time on the same disk is *really*

 We do test with non-SSD drives :)
 Out of curiosity, is your disk nearly full or why did you add a comment to
 this specific ticket?
 And how large is your Tor Browser directory? It surprises me that making a
 recursive copy of the browser program files and data would cause so much
 I/O thrash.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18186#comment:9>
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